Asus released 0610 BIOS for Asus A8N-VM (CSM) mainboards. The ACPI error is still not fixed so acpi patch is still needed to make it working.
It is good time to remind Asus that ACPI error is still not fixed and needs some cleanup work.
ACPI-0311: *** Error: ns_search_and_enter: Bad character in ACPI Name: 43025350
ACPI-0292: *** Error: Looking up [0x43025350] (NON-ASCII)
in namespace, AE_BAD_CHARACTER
ACPI-0115: *** Error: acpi_load_tables: Could not load namespace: AE_BAD_CHARACTER
ACPI-0123: *** Error: acpi_load_tables: Could not load tables: AE_BAD_CHARACTER
ACPI: Unable to load the System Description Tables